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 (ī′sō-sī′ə-nāt′, -nət)
1. A chemical group, NCO.
2. A salt, ester, or anion of isocyanic acid.
3. Any of various compounds that contain an isocyanate group, NCO. Isocyanates are used mainly in production of polyurethane and can cause respiratory disorders, especially asthma, if inhaled.


(Chemistry) chem any of various compounds containing the univalent radical -N=C=O


(ˌaɪ səˈsaɪ əˌneɪt)

a salt or ester of an unstable acid, CHNO, tautomeric with cyanic acid.
[1870–75; isocyan(ic acid) (see iso-, cyanic acid) + -ate2]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.isocyanate - a salt or ester of isocyanic acid
salt - a compound formed by replacing hydrogen in an acid by a metal (or a radical that acts like a metal)
References in periodicals archive ?
Other key components in a polyurethane to be discussed will include polymer structure modifiers (chain extenders and crosslinkers); catalysts, including the different types and mechanism of action (blowing reaction, gel reaction and trimerization); surfactants (type and activity); blowing agents, including a brief history and all the newest developments; other additives (antioxidants, UV stabilizers, flame retardants and fillers); and environmental, health and safety (handling isocyanates, handling polyols, catalysts, surfactants, etc.
The primary literature would have informed her that beyond contact irritation, toxicity of the isocyanates varies widely.
With the advent of mass production of isocyanates and polyester compounds for the manufacture of polyurethane foams.
Dual functionality polyisocyanates produce linear polymers; trifunctional isocyanates produce the desired crosslinked structure.
As the metalcasting industry moves into more semi-permanent mold and aluminum sand-casting applications, the process may offer a workplace that doesn't contain isocyanates or formaldehyde as decomposition products.
The objective of this review is to analyse the global and CIS isocyanates markets.
com adds "Market Research Report on Global and Chinese Isocyanates Industry, 2009-2019" and "Isocyanate Market by Type (MDI, TDI, Aliphatic, Others) & Application (Rigid Foam, Flexible Foam, Paints & Coatings, Adhesive & Sealants, and Elastomers & Binders) - Global Trends & Forecast to 2019" research reports to its store.
Nisocoat 2, a new non-isocyanate acrylic coating, which offers similar technical performance to two-pack polyurethane finishes, with none of the health and safety concerns associated with isocyanates is the newest product from HMG Paints Ltd.
Since monomeric isocyanates have toxicity issues, polymeric isocyanates or prepolymers are used in coatings.
Acrylic Polyol - MDI (MMDI & PMDI) - TDI - Specialty Isocyanates - Standard Polyether Polyol - Polyether Graft Copolymer Polyol - Polyester Polyol - PTHF Polyol
This generalization is usually observed in 4,4'-diphenyl methane diisocyanate (MDI), but does not necessarily hold true for the less structured toluene diisocyanate (TDI) and similar isocyanates (Fig.